Ceramic Composites Based on Zircon and Hafnium Oxide

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS

Glass Physics and Chemistry Pub Date : 2025-03-23 DOI:10.1134/S1087659624600893

V. L. Ugolkov, N. A. Koval’chuk, A. V. Osipov, L. P. Mezentseva

引用次数: 0

Abstract

By sintering nanosized powders in air in the range of 1000–1300°C, ceramic composites (1 – x)ZrSiO₄–xHfO₂ with low thermal conductivity are obtained. It is shown that at a temperature of 1300°C the composites are a mixture of monoclinic solid solutions of Hf_xZr_1 – xO₂ and SiO₂. For the first time, the temperature–concentration dependencies of the thermal conductivity of the obtained ceramic samples are presented. Using electron microscopy, the fracture surface of ceramic samples after sintering at 1300°C is investigated, their thermal behavior is studied using dilatometry, and the temperature coefficient of linear expansion is estimated.

Abstract Image

查看原文本刊更多论文

基于锆英石和氧化铪的陶瓷复合材料

在 1000-1300°C 的温度范围内，通过在空气中烧结纳米级粉末，获得了热导率较低的 (1 - x)ZrSiO4-xHfO2 陶瓷复合材料。研究表明，在 1300°C 的温度下，复合材料是 HfxZr1 - xO2 和 SiO2 的单斜固溶体的混合物。首次提出了所获得陶瓷样品热导率的温度浓度依赖性。利用电子显微镜对陶瓷样品在 1300°C 烧结后的断裂面进行了研究，并利用膨胀仪对其热行为进行了研究，同时估算了线膨胀系数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Glass Physics and Chemistry 工程技术-材料科学：硅酸盐

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.